1. corrugated -- (shaped into alternating parallel grooves and ridges; "the surface of the ocean was rippled and corrugated")

1.

'Well, Linton,' murmured Catherine, when his corrugated brow relaxed, 'are you glad to see m. - from Wuthering Heights by Emily Bronte

2.

What reminiscences temporarily corrugated his bro. - from Ulysses by James Joyce

3.

He then knelt, and presenting a really beautifully rounded bottom of the fairest hue, he pushed it out, showing a light brown corrugated bum-hole, most tempting to look at. - from The Romance of Lust by Anonymous

4.

In all this she was only acting a part prompted by myself, for I was most anxious not only to have De Grandvit into my own arse, but was longing to be into his great, coarse, hairy, corrugated deep-brown arsehole. - from The Romance of Lust by Anonymous

5.

While thus kneeling with head low, and the chink between the buttocks well spread open, his exquisite small, pink, corrugated arsehole with almost invisible fair, short ringlets around it was truly lovely and exciting. - from The Romance of Lust by Anonymous